Only the second one (Segwit) is really a Segwit wallet, which is using the bech32 format, thus not recommended right now since most services don't support this format (address starting with bc1).
The first one (Standard) is a normal address.
I see so that's the reason for breaking client code in old wallets was because they need bech32 in the transaction
https://github.com/bitcoin/bips/blob/master/bip-0173.mediawikiFor most of its history, Bitcoin has relied on base58 addresses with a truncated double-SHA256 checksum. They were part of the original software and their scope was extended in BIP13 for Pay-to-script-hash (P2SH). However, both the character set and the checksum algorithm have limitations:
Base58 needs a lot of space in QR codes, as it cannot use the alphanumeric mode.
The mixed case in base58 makes it inconvenient to reliably write down, type on mobile keyboards, or read out loud.
The double SHA256 checksum is slow and has no error-detection guarantees.
Most of the research on error-detecting codes only applies to character-set sizes that are a prime power, which 58 is not.
Base58 decoding is complicated and relatively slow.
Included in the Segregated Witness proposal are a new class of outputs (witness programs, see BIP141), and two instances of it ("P2WPKH" and "P2WSH", see BIP143). Their functionality is available indirectly to older clients by embedding in P2SH outputs, but for optimal efficiency and security it is best to use it directly. In this document we propose a new address format for native witness outputs (current and future versions).
Well forget about it being slow because Mining and PoW in Bitcoin is all about wasting CPU power (They love it)
I can run with mixed case and error correction forced the change
Maybe the miners should give us free fees when converting a wallet, you know like all 20,000 of the parasites
could just about manage the conversion since the development team cocked it up in the first place and they
are only processing seven transactions per second
We keep seeing problem-reaction-solution with Bitcoin and the odd thing is that it hits our pockets
each time but yes i can agree it needed a fix